Pls help... Find the area of the following circle

=94.985m²

Step-by-step explanation:

Area = πr²

π=3.14

r=5.5

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  Find the radius,

         11/2=r

          r=5.5

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Area=

3.14x 5.5x 5.5

3.14x30.25

=94.985m²

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).